*
{
    margin: 0;
    padding:0;
    
}
body
{
    background: #333;
}
.box
{
    width: 800px;
    height: 280px;
    margin: 50px auto;
    position: relative;
}

.box .link
{
    width:205px;
    height: 280px;
    float: left;
    margin: 0 20px;
}
.link .icon
{
    display: inline-block;
    width:100%;
    height: 190px;
    transition:all 0.1s ease-out;
}
.link-miss .icon
{
    background:url(./images/mission.png)  no-repeat center center;
}

.link-play .icon
{
    background:url(./images/play.png) no-repeat center center;
}

.link-touch .icon
{
    background:url(./images/touch.png) no-repeat center center;
}
.link .icon:hover
{
    transform: rotate(360deg) scale(1.2);
    -ms-transform:rotate(360deg) scale(1.2);
    -webkit-transform: rotate(360deg) scale(1.2);
    -moz-transform:rotate(360deg) scale(1.2);
}
.button
{
    display: block;
    position: relative;
    width:180px;
    height: 50px;
    line-height: 50px;
    text-decoration: none;
    color:#2dcb70;
    font-family: Arial;
    font-weight: bolder;
    border:2px solid rgba(255,255,255,0.8);
    margin: 0 auto;
    padding-left: 20px;
    box-sizing: content-box;
    background: url(./images/allow.png) no-repeat 130px center;
    transition:all 500ms ease;
}

.button:hover
{
    border:2px solid white;
    background-position:140px center ;
}
.button .line
{
    display: block;
    position: absolute;
    background: none; 
}
.button:hover .line
{
    background: #fff;
    transition:all 200ms ease-out;
}
.button .line-top
{
    height: 2px;
    width:0px;
    left: -50%;
    top:-2px;
    
}
.button:hover .line-top
{
    left: -2px;
    width:100%;
}
.button .line-right
{
    height: 0;
    width:2px;
    top:-100%;
    right:-2px;
}
.button:hover .line-right
{
    height: 100%;
    top:-2px;
}
.button .line-bottom
{
    height: 2px;
    width:500px;
    right: -50%;
    bottom:-2px;
    
}
.button:hover .line-bottom
{
    right: -2px;
    width:100%;
}
.button .line-left
{
    height:0px;
    width:2px;
    bottom:-100%;
    left:-2px;
}
.button:hover .line-left
{
    height: 100%;
    bottom:-2px;
}
.box .tip
{
    position: absolute;
    padding:0 14px;
    height: 35px;
    line-height: 35px;
    background: #2dcb70;
    color: #fff;
    font-size: 18px;
    margin:0 auto;
    border-radius: 3px;
    transition:all 300ms ease-out;
    top:120px;
    opacity:0;
}
.tip em
{
    font-style: normal;
}
.tip span
{
    display: block;
    width:0;
    height: 0;
    border:7px solid transparent;
    border-top:7px solid #2dcb70;
    position: absolute;
    top:35px;
    left:50%;
    margin-left: -3px;
}